diff options
Diffstat (limited to 'drivers/base')
-rw-r--r-- | drivers/base/core.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index 9630fbd..38bbbd0 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -1819,3 +1819,67 @@ void device_shutdown(void) spin_unlock(&devices_kset->list_lock); async_synchronize_full(); } + +/* + * Device logging functions + */ + +#ifdef CONFIG_PRINTK + +static int __dev_printk(const char *level, const struct device *dev, + struct va_format *vaf) +{ + if (!dev) + return printk("%s(NULL device *): %pV", level, vaf); + + return printk("%s%s %s: %pV", + level, dev_driver_string(dev), dev_name(dev), vaf); +} + +int dev_printk(const char *level, const struct device *dev, + const char *fmt, ...) +{ + struct va_format vaf; + va_list args; + int r; + + va_start(args, fmt); + + vaf.fmt = fmt; + vaf.va = &args; + + r = __dev_printk(level, dev, &vaf); + va_end(args); + + return r; +} +EXPORT_SYMBOL(dev_printk); + +#define define_dev_printk_level(func, kern_level) \ +int func(const struct device *dev, const char *fmt, ...) \ +{ \ + struct va_format vaf; \ + va_list args; \ + int r; \ + \ + va_start(args, fmt); \ + \ + vaf.fmt = fmt; \ + vaf.va = &args; \ + \ + r = __dev_printk(kern_level, dev, &vaf); \ + va_end(args); \ + \ + return r; \ +} \ +EXPORT_SYMBOL(func); + +define_dev_printk_level(dev_emerg, KERN_EMERG); +define_dev_printk_level(dev_alert, KERN_ALERT); +define_dev_printk_level(dev_crit, KERN_CRIT); +define_dev_printk_level(dev_err, KERN_ERR); +define_dev_printk_level(dev_warn, KERN_WARNING); +define_dev_printk_level(dev_notice, KERN_NOTICE); +define_dev_printk_level(_dev_info, KERN_INFO); + +#endif |